I think FAILBACK_IMMEDIATE for DS6000 makes more sense. Also for SVC (2145) the same settings should be used as DS6000 since it is also an asymetric device, i.e. r += store_hwe_ext(hw, "IBM", "2145", GROUP_BY_PRIO, DEFAULT_GETUID, "/sbin/mpath_prio_alua /dev/%n", "0", "1 queue_if_no_path", "tur", FAILBACK_IMMEDIATE); <div>On 12/7/05, Stefan Bader <<a href="mailto:Stefan.Bader@de.ibm.com">Stefan.Bader@de.ibm.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi Christophe, Hannes, I thought I had already sent parts of these but they don't seem to be in the git head when I look now. I'd suggest a small change for the DS6000 aka 1750500. Since paths with higher prio are more appreciated, wouldn'T FAILBACK_IMMEDIATE make more sense? Regards, Stefan SW Linux on zSeries Development & Services <a href="mailto:Stefan.Bader@de.ibm.com">Stefan.Bader@de.ibm.com</a> ---------------------------------------------------------------------------------- When all other means of communication fail, try words. <a href="mailto:dm-devel-bounces@redhat.com">dm-devel-bounces@redhat.com</a> wrote on 07.12.2005 12:11:23: > Hi Christophe, > > attached is a patch to update hwtable.c with some IBM Storage Servers. > Especially the DS6000 should be handled properly as it again has > asymmetric paths. > > Cheers, > > Hannes > -- > Dr. Hannes Reinecke <a href="mailto:hare@suse.de">hare@suse.de</a> > SuSE Linux Products GmbH S390 & zSeries > Maxfeldstraße 5 +49 911 74053 688 > 90409 Nürnberg <a href="http://www.suse.de">http://www.suse.de </a> > Subject: Hardware entries for IBM Storage Servers > > Several IBM Storage Servers (most notably the DS range) need > specific hardware entries. This patch adds hardware entries > for: > > - IBM ESS F20 (aka Shark) > - IBM DS6000 > - IBM DS8000 > - IBM SVC > > Signed-off-by: Hannes Reinecke <<a href="mailto:hare@suse.de">hare@suse.de</a>> > > --- > > libmultipath/hwtable.c | 14 ++++++++++++++ > 1 files changed, 14 insertions(+), 0 deletions(-) > > diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c > --- a/libmultipath/hwtable.c > +++ b/libmultipath/hwtable.c > @@ -39,6 +39,20 @@ setup_default_hwtable (vector hw) > "1 queue_if_no_path", "emc_clariion", -FAILBACK_IMMEDIATE); > r += store_hwe_ext(hw, "IBM", "3542", GROUP_BY_SERIAL, DEFAULT_GETUID, > NULL, "0", "0", "tur", FAILBACK_UNDEF); > + /* IBM ESS F20 aka Shark */ > + r += store_hwe_ext(hw, "IBM", "2105F20", GROUP_BY_SERIAL, > + DEFAULT_GETUID, NULL, "0", "1 queue_if_no_path", > + "tur", FAILBACK_UNDEF); > + /* IBM DS6000 */ > + r += store_hwe_ext(hw, "IBM", "1750500", GROUP_BY_PRIO, DEFAULT_GETUID, > + "/sbin/mpath_prio_alua /dev/%n", "0", "1 queue_if_no_path", > + "tur", FAILBACK_UNDEF); > + /* IBM DS8000 */ > + r += store_hwe_ext(hw, "IBM", "2107900", GROUP_BY_SERIAL, DEFAULT_GETUID, > + NULL, "0", "1 queue_if_no_path", "tur", FAILBACK_UNDEF); > + /* IBM SAN Volume Controller */ > + r += store_hwe_ext(hw, "IBM", "2145", MULTIBUS, DEFAULT_GETUID, > + NULL, "0", "1 queue_if_no_path", "tur", FAILBACK_UNDEF); > r += store_hwe_ext(hw, "NETAPP", "LUN", GROUP_BY_PRIO, DEFAULT_GETUID, > "/sbin/mpath_prio_netapp /dev/%n", NULL, > "1 queue_if_no_path", "readsector0", FAILBACK_UNDEF); > -- > dm-devel mailing list > <a href="mailto:dm-devel@redhat.com">dm-devel@redhat.com</a> > <a href="https://www.redhat.com/mailman/listinfo/dm-devel"> https://www.redhat.com/mailman/listinfo/dm-devel</a> -- dm-devel mailing list <a href="mailto:dm-devel@redhat.com">dm-devel@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/dm-devel">https://www.redhat.com/mailman/listinfo/dm-devel </a> </blockquote></div>